FIELD: manufacture of flexible pipings. SUBSTANCE: corrugated pipe has corrugated strips helically wound in overlap, part of them is made of filter media, and part-of corrugated ones. The turns in the area of overlap are connected by different methods, for example, by different kinds of welding, soldering or by mechanical attachment. EFFECT: enhanced quality. 2 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CORRUGATED PIPE | 0 |
|
SU1733815A1 |
| FLEXIBLE MULTICAVITY PIPELINE | 0 |
|
SU1798580A1 |
| CORRUGATED TUBE | 0 |
|
SU1740847A1 |
| CORRUGATED PIPE | 1992 |
|
RU2031298C1 |
| FLEXIBLE CORRUGATED PIPE | 1992 |
|
RU2028535C1 |
| METHOD OF MAKING PIPE | 2004 |
|
RU2272953C1 |
| FLEXIBLE PIPE LINE | 1991 |
|
RU2011099C1 |
| METHOD OF MULTILAYER SHELLS PRODUCTION | 1991 |
|
RU2009747C1 |
| FLEXIBLE PIPELINE | 1991 |
|
RU2007653C1 |
| PIPE LINE AND METHOD OF ITS MANUFACTURE | 2000 |
|
RU2177099C1 |
